American educator and labor activist
According to Wikipedia,
Margaret A. Haley was a teacher, unionist, and Georgist land value tax activist, who was dubbed the "lady labor slugger". Haley was the first business representative of the Chicago Teachers Federation and a pioneer leader in organizing schoolteachers. During her long career with the CTF, Haley fought to correct tax inequalities, increase the salaries of teachers, and expose unfair land leasing by the Chicago Board of Education.
Margaret Haley is affiliated with the following schools: